leon panetta and general dempsey at 3:00 p.m. eastern. hamid karzai it will be at the white house tomorrow, and we will also hear from him at georgetown tomorrow afternoon, live at 5:30 eastern. coming up tonight, a look at college debt, student loans, and whether college debt might be the next bauble that could impact the economy. we will be joined by marian wang and josh mitchell. while we wait for the news conference to get under way, at 3:00 p.m. eastern, a conversation from this morning's carroll."on reserv host: we continue our focus on immigration, looking at the enforcement of laws. mark krikorian is the executive director of the center for immigration studies. welcome to you. and ali noorani is the director of the national immigration forum. let's talk about how many illegal and legal immigrants are in the country today. guest: altogether roughly 40 million immigrants. that includes naturalized citizens, people with green cards, people who were illegal immigrants, and long-term temporary and reverence, too. out of those 40 million, there are 12 million illegal immigrants.